Tie-Line Data for Aqueous Mixtures of Butyric Acid with Diisopropyl Ether at Various Temperatures

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• 作者：Liejin Luo ; Libo Li ; Huimin Wang ; Yun Chen
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2016
• 出版时间：February 11, 2016
• 年：2016
• 卷：61
• 期：2
• 页码：760-765
• 全文大小：377K
• ISSN：1520-5134

文摘

In this work, liquid–liquid equilibrium (LLE) data for ternary system water + butyric acid + diisopropyl ether (DIPE) at atmospheric pressure and temperatures of 298.15 K, 313.15 K, and 323.15 K were experimentally measured. From the resulted distribution coefficient and selectivity, we can find that diisopropyl ether is an efficient solvent to extract butyric acid. The reliability of the experimental tie-line data was ascertained through the Othmer–Tobias and Hand equations. The consistency of experimental tie-line data was confirmed by the NRTL and UNIQUAC models. Both models describe the phase behavior of the studied systems accurately with very small average deviations.